Creating full-calendar-react :: error dateProfileGenerator is undefined - reactjs

Question

Trying to make Full-Calendar component for reactjs, and fill it up with events retrieved from firestore database (Retrieving the events when changing the month).
But no matter what i do, i receive the error about dateProfileGenerator, so the code below is the code that i use just i deleted the part where i retrieve from the db, and still does not work.
import React from 'react';
import FullCalendar from '#fullcalendar/react';
import dayGridPlugin from '#fullcalendar/daygrid';
import interactionPlugin from '#fullcalendar/interaction';
Receiving this error:
TypeError: dateProfileGenerator is undefined
Here is the code i am trying to run.
const DemoCalendar = () => {
return (
<FullCalendar
headerToolbar={{
left: 'prev, next today',
center: 'title',
right: 'dayGridMonth,timeGridWeek, timeGridDay, listMonth'
}}
initialDate={new Date()}
navLinks="true"
businessHours="true"
editable="false"
selectable="true"
events={[
{
title: 'Business',
start: '2021-05-05T10:00:00',
end: '2021-05-06T10:30:00',
constraint: 'businessHours',
color: '#257e4a'
},
{
groupId: 'available',
start: '2021-05-06T10:00:00',
end: '2021-05-06T10:30:00',
display: 'background'
}
]}
plugins={[dayGridPlugin, interactionPlugin]}
initialView="dayGridMonth"
/>
);
};
};
Thanks in advance.

Answer 1

I also encountered this error using React. I still don't know what's wrong, but it works after I moved my main code to the React project example here:
https://github.com/fullcalendar/fullcalendar-example-projects/tree/master/react
I then installed #fullcalendar/list additionally, which is not included in the original example.
My guess is I might have mistyped something or I didn't not install #fullcalendar/list correctly. For your case I think you may have forgotten to enter this line of code
import listPlugin from '#fullcalendar/list'
If not, you can try to modify the React example project. Maybe moving your code to a new project also works. Reinstalling the whole node_modules doesn't help.
Update: Changing the folder name helps when I encountered another error today.